My girlfriends family hates me?

well, for the first date, we hung at her place and played video games, and her family overheard us joking around about sex and such. but her family somehow dislikes me alot now. ive attempted to patch up some bridges for them, but they still seem to really dislike me. they made her break up with me even though we do love eachother very much, and weve been having a romeo and juliet relationship for the past long while. and i want to meet the family, but theyre still mad at me and ive no idea how to repent for this. itd be nice if i got some help. id like the fathers blessing before i plan on popping the question